From our experience, we see that configuring firewall like CSF greatly helps in real time servers. Likewise, server firewall helps to increase the security in Virtualmin. This avoids the vulnerability via the unused features. For example, for simple WordPress websites, our Dedicated Engineers just enable Web Server and MySQL. To secure the server, we always make it a point to disable the features that we don’t need. But, this also enables service that you will never use. The Virtualmin installer enables all of the Virtualmin features by default. Yet another risk in Virtualmin security happens when enabling unwanted features on the server. Click on “ Updates and new” button that displays both new Virtualmin packages and packages for which updates are ready.Click on the Virtualmin Package Updates module.Here, our Support Engineers ensure periodic Virtualmin updates from the Webmin control panel using the steps given below. So, failing to update the server on time can make the server prone to attack. Unfortunately, this will not work in the case of servers.įor example, Virtualmin 6.03 had cross site scripting vulnerability. They just install the server and forget about it. Further, we restart the Webmin service to apply the changes.įrom our experience in managing servers, we often see that some customers fail to update Virtualmin on time. To make this working, we set the port in the file /etc/webmin/nf. To avoid the attack, our Security Engineers change the port to something else. This can make attackers look for server with port 10000 open. By default, Virtualmin listens on port 10000. Similarly, changing Virtualmin port to an uncommon one also helps. That’s why, our Support Engineers automate this task by setting up cron jobs to check the files and folders with full permissions. Unfortunately, manually checking these file permissions can be a tedious task. For the files it will be 644 and the folders it will be 755. To avoid this, we always restrict the permissions on the files and folders to bare minimum. Thus, it can cause damage to the entire server. Normally, these full permissions allow hackers to execute malicious scripts on the server. Thus, it helps to avoid hackers trying to crack the root user password.Īgain, a major share of server attacks happens when there are full permissions on the files and folders. Instead, we setup a user and add it to wheel group and give special privileges. This involves disabling direct root access for SSH. Similarly, we enable restriction on SSH services too. That allows to lock an FTP user into their home directory. Therefore, as the first step of maintaining security, our Support Engineers set proper limits for users on accessing each service.įor example, in case of FTP server, we setup FTP directory restrictions in Limits and Validation -> FTP Directory Restrictions. Now, let’s look on the top 7 steps that our Support Engineers take to ensure Virtualmin security.Ī door without a lock make things easy for a thief. Ideally, security should begin during the initial server setup itself. This involves many steps and will depend largely on the type of application running on the server. Our Security Engineers always set up any server keeping the security as the primary concern. Security is not something that we can add at the end of server setup. Thus, in Virtualmin servers, our Security Engineers proactively set up security measures. Therefore, it is really critical to always update the Virtualmin installation.Īdditionally, when hacker manages to get access to the Virtualmin server, he can modify all domains on the server. For example, Virtualmin 6.03 allows cross site scripting, which can result in adding bogus scripts to websites. Hackers evolve every day and try to exploit known security holes on any system. It allows to manage user accounts, web server configuration, manage databases, mailboxes, and much more.īefore proceeding further, let’s first see the importance of security in Virtualmin servers. Today, we’ll see how our Dedicated Engineers setup Virtualmin security to avoid potential server hacks.īasically, Virtualmin helps to manage multiple websites from a single panel. Just like any other product, ensuring Virtualmin security can avoid server attacks.Īt Bobcares, we often get requests from customers to keep their Virtualmin servers secure as part of our Server Management Services. A free control panel to manage the websites is a boon for every server owner.Īnd, that’s what make Virtualmin popular.
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